Alic - amen
- Alice in Wonderland effect
- Alice in Wonderland syndrome
- alkaloids and hallucinations
- allachaesthesia
- allesthesia
- alley
- allocheiria
- allochiria
- allodynia
- alloesthesia
- allotopagnosia
- allucinatio
- altruistic hallucination
- alucinari
- alucinatio
- alusia
- Alzheimer's disease and hallucinations
- amanita reverie
- amaurosis and visual hallucinations
- amaurosis fugax and visual hallucinations
- ambiguity
- ambiguous figure
- ambiguous illusion
- amblyopia and hallucinations
- AMDP's definition of hallucinations
- AMDP's definition of illusions